rule 34 abstract background ambiguous gender anthro barbie doll anatomy bedroom eyes black body black fur on hand on knife on weapon bodily fluids cheek tuft demon domestic cat ears down facial tuft fangs felid feline felis fur gore half closed eyes heart organ hi res knife lamekun looking at viewer mammal mixed media narrowed eyes nude open mouth open smile organs pivoted ears psychedelic background seductive simple background smile solo spade tail tuft weapon 6181168